Popsugar Entertainment Pretty Little Liars Pretty Little Liars "How the 'A' Stole Christmas" Pictures This Week's Pretty Little Liars Christmas Special Looks Gorgeous and Terrifying December 9, 2014 by Maggie Panos View On One Page Photo 20 of 41 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 20 Here they are! Alison heads up a group of masked ladies. Previous Next Start Slideshow Pretty Little LiarsHoliday EntertainmentHolidayTV